ontario ministry of natural resources hearst district thermal regime stream assessment
abstract
forest ecosystems today are continually under pressure from a variety of
special interests including timber operations. a goal of the ontario ministry of
natural resources to aid natural ecosystems by providing forest management
guidelines is to assist foresters with timber operations. the timber
management guidelines for the protection of fish habitat were developed to
mitigate the harmful influences of timber operations on fish habitat and water
quality.
knowledge of a stream’s thermal regime is important for assessing the
effectiveness of the area of concern when applying the guidelines. currently,
the lack of this information in the hearst mnr district led to the attempted use
of a stream thermal stability model. the model was developed to allow users to
collect only a single stream temperature at 16oohr on a day when temperatures
exceeded 24.5°c. fifty-one stream segments were studied and temperature
data were collected with automated hobo8 loggers. the thermal stability model
proved unsuccessful as the model could not be calibrated for this district.
collections
- retrospective theses [1604]